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GalinKa [24]
3 years ago
8

12. What's the simplified form of 2x + 3 - X + 5? A. X + 8 B. X-2 C. X-8 D. 3x + 8

Mathematics
1 answer:
mr Goodwill [35]3 years ago
5 0
Answer: the answer is a
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Help!<br><br> If a sphere has a radius of 8mm, what is its volume? (Show work)
babymother [125]
The formula for the volume of a sphere is V = (4/3) * π * r³. Knowing this, we can plug in the radius:

V = \frac{4}{3} \pi *8^{3} \\ V = \frac{4}{3} \pi*512 \\ V = 2144.66

The sphere's volume is approximately 2144.66 mm^3.
7 0
3 years ago
Is the correctx 25&lt;28
trapecia [35]

Answer:

Yes

Step-by-step explanation:

25 is less than 28

28 is greater than 25

4 0
3 years ago
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Joe can clear a lot in 2.5 hours. His partner can do the same job in 7.5 hours. How long will it take them working together?
irina [24]

Answer:

The time required by both persons to complete the work T = 1.458 hours

Step-by-step explanation:

Given data

Time required by Joe to clear a lot T_1 = 2.5 hours

Time required by his partner to clear a lot T_2 = 2.5 hours

Time required by both persons to complete the work by working together

T = \frac{T_1 T_2}{T_1 + T_2}

T = \frac{(2.5)(3.5)}{2.5 + 3.5}

T = 1.458 hours

Therefore the time required by both persons to complete the work T = 1.458 hours

7 0
3 years ago
Solve these inequalities
Setler [38]

Answer:

x>±4

x<±1

Step-by-step explanation:

Given the inequalities

x² > 16

Square root both sides

√x² > ±√16

x > ±4

The solution is x>±4

2) x² < 1

Square root both sides

√x² <±√1

x < ±1

Hence the solution is x<±1

3 0
2 years ago
Find the circumference and the area of a circle with radius 5 ft Use the value 3.14 for pi and do not round your answers. Be sur
Black_prince [1.1K]

Answer:

circumference: 31.41593 ft

Area: 78.53982 ft

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
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